Stave-jointlng machine



(No Model.)

J. TREAT.

STAVB JOINTING MACHINE.

No. 300,083. Patented June 10, 1884.

lUNrTEn STATES PATENT @EFICE.

JOSHUA TREAT, OF HAMPDEN, MAINE.

STAVE-JOINTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 300,033, dated June 10, 1884.

Application filed May 24, 1883. (No model.)

- To all whom, itmay concern:

Be it known that I, JOSHUA Tnniugof Hampden, in the county of Penobscot and State of Maine, haveinvented certain new and useful Improvements in Stave-Jointing Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming apart of this specification, in which annexed drawings, in which, at a, is shown the frame of the machine, provided with the usual pulleys, shafting, &c. b shows the saw. Upon one side of this frame a is hinged a stave-supporting table, 0,110 the under side of which is attached a lever, d, pivoted rigidly upon a shaft, 0, which projects upward through the table a, and is provided above the surface of said table with a second lever, f. The other extremity of the lever cl is attached by a short arm, 9, to a lever, h, also turning on and with a shaft, 2', projecting up through the surface of the frame a, and having upon its upper end a lever, j, adapted to act against a springguide, It, as hereinafter described. The lever dis held outward by a spring, Z, acting against its end 12, and is provided at its end at with a knob or projection moving, when the lever is turned on its pivot, over an inclined plane, at,

' and when at the highest portion of this plane supporting the table 0 in a level position. A spring, 0, upon the upper side of the table 0 presses down upon the stave, keeping it in position while being sawed, and, furthermore, insures the downward motion of said table upon its hinges when the knob m is moved from under it by the action. of the lever 01.

The operation of the machine is as follows: As the stave is pushed or fed toward the saw, it acts upon the lever f, throwing its end outward, and turning the shaft-to which is secured the lever d. This forces the end 1) of the lever cl inward, carrying with it the arm 9 and lever 71, and causes the lever j,secured to the shaft z, to act upon and force inward the end of the spring-guide It, the degree of curvature given to said guide, and consequently to the stave itself, being determined, as will be read ily seen, by the width of the stave itself. As the end 1) of the lever d is thrown inward, its opposite end will be thrown outward in like proportion, and the knob m thereon, actuated by theweight of the table 0, the stave, and the downward pressure of the spring 0, follows down the inclined plane a, before referred to, forming the list or bevel of the stave justly proportioned to its width. WVhen the stave is sawed, the spring Z, acting upon the end 12 of the lever d, forces it with its attachments back into their former position, the table being brought to a level at the same time by the return of the knob to the higher part of the plane at, raising and holding the table.

In order to regulate the width of the strip to be removed from the stave, I attach the end 2 of my spring-guide to a sliding block or frame, q, one surface of which is inclined, as at r. This block and attached guide is adjustable by means of a screw-rod, s, and as it is -moved longitudinally on the frame a the inclined surface, acting against said frame, forces the guide to'or from the face of the saw.

All the important parts of my device, as will be seen, are adj ustably connected by slots and bolts, making it adaptable to staves of different patterns.

hat I claim as my invention is 1. In a stave-jointing machine, the combination of the hinged table 0, pivoted arm f, adapted to be oscillated by the stave, the inclined plane a, secured to a fixed support, and the knob m, connected and oscillating with the armf, and situated between said inclined plane and the hinged table, substantially as set forth.

2. In a stave-jointing machine, the combination of the hinged table c, pivoted arm f, adapted to be oscillated by the stave, the inclined plane a, adjustable toward and from the table on a fixed support, and the knob m, connected and oscillating with the arm f, and

' situated between said inclined plane and the hinged table, substantially as set forth.

3. In a stave-jointing machine, the combination of the hinged table 0, pivoted arm 1, adapted to be oscillated by the stave, the inclined plane a, attached to a fixed support, the lever (1, connected and oscillating with the arm f, and adapted through "the construction and connections shown to operate the springguide It, and the knob m, attached to said lever (1, and situated between the hinged table and the inclined plane, substantially as set forth.

4. In a stave-jointing machine, the combination of the hinged table 0, for supporting the Work, means for automatically raising said table to change the inclination of the work to the saw, and a presser adapted to hold the work against the table, and to insure the return of the latter when released bythe raising de- Vices, substantially as set forth.

5. In a stave-jointing machine, the combination of the hinged table 0, for. supporting the work, means for automatically raising said table to change the inclination of the work to the saw, and the spring 0, attached to a fixed support, and adapted to hold the .work against the table, and to insure the return of the latter when released by the raising devices, substantially as set forth.

6. In a stave-jointing machine, the combination of the main frame having a surface inclined to the plane of the saw, the wedge q, bearing against said surface and held in sliding contact therewith, the guide 70, attached to said wedge in a position substantially parallel to the plane of the saw, and means for longitudinally adjusting said wedge to change the distance between the guide and the saw, substantially as set forth.

7 In a stave-jointing machine, the combination of the main frame having a surface in? clined to the plane of the saw, the wedge (1, bearing against said surface and held in sliding contact therewith, the guide 7c, attached to said wedge in aposition. substantially parallel to the plane of the saw, and a rod, 8, extending to the end of the frame next to the operator for longitudinally adjusting said wedge, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 19th day 0t May, 1888.

JOSHUA TREAT.

XVitnesses:

J. B. FIsKn, WM. FRANKLIN SEAVEY. 

